I just ordered one Moku:Go, will report once I had a chance to play with it. The DAC side only has 12 bit, but it allows for oversampling so this can effectively become a 24 bit DAC. The latency is supposedly nanoseconds, certainly enough for audio. The interface looks nice with FIR and IIR filters available - there are no Linkwitz Riley filters but one can put in the filter coefficients to get anything you want.
As an alternative the analog discovery 2 also looks like a nice way to get into audio with FPGA.
As an alternative the analog discovery 2 also looks like a nice way to get into audio with FPGA.